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322 lines
11 KiB
322 lines
11 KiB
/*
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* Copyright (C) 2001-2003, Richard J. Moore <rich@kde.org>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public License
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* along with this library; see the file COPYING.LIB. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#ifndef KJSEMBEDJSCONSOLEPART_H
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#define KJSEMBEDJSCONSOLEPART_H
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#include "global.h"
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#include <tqstringlist.h>
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#ifndef QT_ONLY
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#include <tdeparts/part.h>
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#endif
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#include <kjs/interpreter.h>
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#include <kjs/object.h>
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#include <kjs/value.h>
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#include <kjsembed/jsbinding.h>
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#ifndef QT_ONLY
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#include <kjsembed/xmlactionclient.h>
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#else
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#include <kjsembed/qtstubs.h>
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#endif
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class TQWidget;
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#define KJSEMBED_VERSION_STRING "0.3"
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#define KJSEMBED_VERSION_MAJOR 0
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#define KJSEMBED_VERSION_MINOR 3
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/**
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* Namespace containing the KJSEmbed library.
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*/
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namespace KJSEmbed {
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class JSObjectProxy;
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class JSConsoleWidget;
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class JSFactory;
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class JSBuiltIn;
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/**
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* A KPart for embedding KJS in an application.
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*
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* @version $Id$
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* @author Richard Moore, rich@kde.org
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* This is the easiest class for interacting and embedding the interpreter. To use KJSEmbed in yours
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* application you can simply create a new KJSEmbedPart. Once you have this object you can expose your
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* TQObect based classes with a few simple methods. The interface also allows for the manipulation of TQVariant data
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* structures between Javascript and C++. Complex Javascript arrays are transparently converted to TQMaps and TQValueLists
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* depending on the type of the Array. KJSEmbed also provides transparent access to most TQVariant datatypes between
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* C++ and Javascript. The easiest way to integrate KJSEmbed into your application is to create a TQObject based class
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* that will be your interface between C++ and Javascript. This object than can expose C++ methods via Qt slots, and
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* TQVariant datatypes via Qt properties. This class will also have an interface where C++ objects can call Javascript
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* methods.
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*/
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class KJSEMBED_EXPORT KJSEmbedPart : public KParts::ReadOnlyPart
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{
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Q_OBJECT
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TQ_PROPERTY( TQStringList constructorNames READ constructorNames )
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TQ_PROPERTY( TQCString versionString READ versionString )
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TQ_PROPERTY( int versionMajor READ versionMajor )
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TQ_PROPERTY( int versionMinor READ versionMinor )
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public:
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/** Create a KJSEmbedPart. */
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KJSEmbedPart( TQObject *parent=0, const char *name=0 );
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/**
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* Creates a KJSEmbedPart for which the parents of the view and part are different.
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*
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* Caution! you cannot use parent = [KQ]Application and wparent = 0L.
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* This will cause a crash on exit since the widget will not be destroyed
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* but the part will get destroyed at the end of the TQApplication
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* constructor. This results in the widget trying to do GUI related things
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* after the TQPaint stuff is destroyed.
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*/
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KJSEmbedPart( TQWidget *wparent, const char *wname=0, TQObject *parent=0, const char *name=0 );
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/**
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* Create a KJSEmbedPart with the specified interpreter.
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*
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* See warning above.
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*/
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KJSEmbedPart( KJS::Interpreter *js, TQWidget *wparent, const char *wname=0,
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TQObject *parent=0, const char *name=0 );
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/** Cleans up. */
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virtual ~KJSEmbedPart();
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//
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// Version information
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//
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/** Returns the version of KJSEmbed. */
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TQCString versionString() const;
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/** Returns the minor version number of KJSEmbed. */
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int versionMajor() const;
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/** Returns the major version number of KJSEmbed. */
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int versionMinor() const;
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//
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// Script environment.
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//
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/** Checks to see if a desired method is available in Javascript.
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* @code
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* if ( js->hasMethod( "javascriptFunction" ) )
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* ... // do something with that function.
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* else
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* ... // function not present.
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*/
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bool hasMethod( const TQString &methodName );
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/** Calls a method from Javascript starting from the global context.
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* @code
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* KJS::List args;
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* args.append(KJS::String("String Arg") );
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* args.append(KJS::Number(10) );
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* args.append(KJSEmbed::convertToValue(js->globalExec(), TQColor("blue" ) ) );
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* KJS::Value val = js->callMethod("javascriptFunction", args );
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* TQString myString = val.toString().qstring();
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* @endcode
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*/
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KJS::Value callMethod(const TQString &methodName, const KJS::List &args) const;
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/** Gets a value from Javascript starting from the global context.
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* @code
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* KJS::Value val = js->getValue("someValue");
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* TQString myString = val.toString().qstring();
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* @endcode
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*/
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KJS::Value getValue( const TQString &valueName ) const;
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/** Sets a value in a Javascript starting from the global context.
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* Note if this value is not present in the javascript context it will
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* become defined once this method is called.
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* @code
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* KJS::Value val = KJSEmbed::convertToValue(js->globalExec(), TQColor("blue"));
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* js->putValue("myVar", val);
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* @endcode
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*/
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void putValue( const TQString &valueName, const KJS::Value &value);
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/** Convinence method that wraps around @ref putValue that only handles values
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* that are supported by TQVariant.
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* @code
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* js->putVariant( "myVar", TQColor("blue") );
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* @endcode
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*/
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void putVariant( const TQString &valueName, const TQVariant &value);
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/** Convinence method that wraps around @ref getValue that only handles values
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* that are supported by TQVariant.
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* @code
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* TQColor value = js->getVariant( "myVar").toColor();
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* @endcode
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*/
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TQVariant getVariant( const TQString &valueName ) const;
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/** Returns the global object of the interpreter. */
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KJS::Object globalObject() const { return js->globalObject(); }
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/** Returns the completion object for the last script executed. */
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KJS::Completion completion() const { return res; }
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/** Returns the JS object of the part. */
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KJS::Object partObject() const { return partobj; }
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/**
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* Publishes 'obj' as property 'name' of the global object. If 'name' is
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* not specified then the name property of 'obj' is used instead.
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* @code
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* // In C++
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* TQObject *myClass = new TQObjectBasedClass(this, "jsObject");
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* js->addObject( myClass );
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* // In Javascript
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* jsObject.someProperty = "Test Property";
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* // In C++ again
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* kdDebug() << "New Value: " << myClass->someProperty() << endl; // displays "Test Property"
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* @endcode
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*/
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KJS::Object addObject( TQObject *obj, const char *name=0 );
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/**
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* Publishes 'obj' as property 'name' of object 'parent'. The binding is defined
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* using @ref JSObjectProxy, and is subject to the current default SecurityPolicy.
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*/
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KJS::Object addObject( TQObject *obj, KJS::Object &parent, const char *name=0 );
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/** Returns a JS::Object that provides a binding to the specified TQObject. */
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KJS::Object bind( TQObject *obj );
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//
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// Query the supported types
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//
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/** Returns a list of the names of the constructors of this interpreter. */
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TQStringList constructorNames() const;
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/** Returns a JS Array of the constructors of this interpreter. */
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KJS::Value constructors() const;
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/** Returns a list of the constructors of this interpreter. */
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KJS::List constructorList() const;
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public slots:
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//
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// Reimplement the KPart API.
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//
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/** Returns the view widget, creating one if required.*/
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virtual KJSEmbed::JSConsoleWidget *view();
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/** Opens a URL. If the URL has the protocol 'javascript' then it is executed. */
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virtual bool openURL( const KURL &url );
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//
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// XML Action Handling
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//
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/** Returns the current XMLActionClient. */
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KJSEmbed::XMLActionClient *actionClient() const { return xmlclient; }
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/** Loads the XML actions defined in the specified file to the default XMLActionClient. */
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bool loadActionSet( const TQString &file );
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//
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// Script environemnt
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//
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/** Returns the current interpreter. */
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KJS::Interpreter *interpreter() const { return js; }
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/** Returns the execution context of the interpreter. */
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KJS::ExecState *globalExec() const { return js->globalExec(); }
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/** Returns the current factory object. */
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JSFactory *factory() const { return jsfactory; }
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/** Evaluates the specified string, with the specified value as 'this'. */
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virtual KJS::Value evaluate( const TQString &script, const KJS::Value &self=KJS::Null() );
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/** Executes the specified string, with the specified value as 'this'. */
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bool execute( const TQString &script, const KJS::Value &self=KJS::Null() );
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/**
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* Executes the specified string, with the specified value as 'this' and sets
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* result to the completion object returned by the interpreter.
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*/
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virtual bool execute( KJS::Completion &result, const TQString &script, const KJS::Value &self );
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/** Loads and runs the specified file. */
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virtual bool runFile( const TQString &filename, const KJS::Value &self=KJS::Null() );
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/**
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* Loads but does not execute the specified script file. If the
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* first line of the file starts with the string '#!' then that
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* line will be omitted from the returned string.
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*/
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TQString loadFile( const TQString &file );
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protected:
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/** Creates the interpreter. */
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void createInterpreter();
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/**
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* Creates the built-in objects and methods in the specified parent object
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* normally the global object of the interpreter. This method is called
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* automatically unless you create the part with a custom interpreter, if
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* you do then you have to call this method yourself if you want the
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* built-ins to be available.
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*/
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void createBuiltIn( KJS::ExecState *exec, KJS::Object &parent );
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/** Sets up the XMLActionClient. */
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void createActionClient();
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/** Reimplemented to disable file support. */
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virtual bool openFile() { return false; }
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/** @internal Hook for virtual that cannot break compatibility. */
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virtual void virtual_hook( int id, void *data );
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private:
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XMLActionClient *xmlclient;
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JSConsoleWidget *jsConsole;
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JSFactory *jsfactory;
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JSBuiltIn *builtins;
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TQWidget *widgetparent;
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TQCString widgetname;
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KJS::Object partobj;
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KJS::Completion res;
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KJS::Interpreter *js;
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bool deletejs;
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class KJSEmbedPartPrivate *d;
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};
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} // namespace KJSEmbed
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#endif // KJSEMBEDJSCONSOLEPART_H
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